TD Garden was cited last week after 36 people were taken to hospitals and at least 50 people were treated at TD Garden due to a combination of heat, intoxication and the club drug Molly.

Boston police wrote in last week's citation that they observed "numerous intoxicated underage patrons," inside TD Garden during an electronic dance music concert.

Avicii, a DJ from Sweden, was performing at the time of the incident.

"It was determined that many of these patrons had consumed intoxicants off-site and became ill inside the licensed premise," a police report stated. "Management also reported patrons found at entry points with alcohol hidden on their person."

TD Garden spokeswoman Tricia McCorkle said that the facility takes the incident very seriously, and said they had increased security in place.

"We implemented increased precautions such as restricted alcohol sales, additional security and provided two cooling off areas for guests, in addition to the building maintained at normal temperature," she said in a statement.